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docs: correct i2cdetect usage and ignore archived notes

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The engine exposes only SMBus BYTE_DATA/WORD_DATA, so i2cdetect (which
needs SMBus QUICK or READ_BYTE) cannot scan the bus. Replace the
misleading "i2cdetect -r/-y" scan instructions with a direct i2cget
byte-data read in the README, the cover letter and the smoke test.

Also gitignore the archived internal working documents
(docs/archive-*.md).

Signed-off-by: Simone Chifari <simone.chifari@gmail.com>
This commit is contained in:
Simone
2026-06-27 20:11:37 +02:00
parent fee48bba23
commit 3c86f6c866
4 changed files with 25 additions and 12 deletions
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README.md
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@@ -111,9 +111,9 @@ i2c-6 smbus iMC SMBus Skylake-X channel 0 SMBus adapt
i2c-7 smbus iMC SMBus Skylake-X channel 1 SMBus adapter
```
You can scan for SPD EEPROMs (usually located at addresses `0x50-0x57`) on channel 0:
The engine has no SMBus QUICK/BYTE primitive, so `i2cdetect` cannot scan the bus. Read a device directly with a byte-data access (a register offset is always required), e.g. SPD byte 2 (DDR4 type code `0x0c`) from the EEPROM at `0x50` on channel 0:
```bash
sudo i2cdetect -y 6
sudo i2cget -y 6 0x50 0x02
```
---